package homework0308;

import java.io.*;

public class CopeDemoBuffered {
    public static void main(String[] args) throws IOException {
        FileInputStream fis=new FileInputStream("123.jpg");
        BufferedInputStream bis=new BufferedInputStream(fis);
        FileOutputStream fos=new FileOutputStream("123_cp.jpg");
        BufferedOutputStream bos=new BufferedOutputStream(fos);
        int d;
        long staet=System.currentTimeMillis();
        while ((d=bis.read())!=-1){
            bos.write(d);
        }
        long end=System.currentTimeMillis();
        System.out.println("复制完成耗时："+(end-staet));
        fis.close();
        fos.close();

    }
}
